PBS NewsHour

What's behind the recent retreat of ISIS in Northern Iraq?

Clip: 12/20/2014 | 3m 59s

Over the past few days, pro-Western Kurdish fighters, with the aid of American air power, have forced ISIS fighters in Northern Iraq to retreat from territory they seized last summer. Anthony Cordesman of the Center for Strategic and International Studies joins Hari Sreenivasan from Washington, D.C. with more on the largest offensive operation carried out against ISIS so far.

Aired: 12/20/14

Rating: NR

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